Revs drop on cold run with A/C on ( faulty engine mounts?)

[lithium]

i have this in my subaru. drops and sometimes even stalls.

try cleaning the throttle body/ICV
also do you have your Subaru serviced at a Subaru dealer? if not remember to run Subie upper engine cleaner through your engine every service or second service. the boxer design tends to gunk up the intake manifold quickly